-; RUN: opt < %s -O3 -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
+; RUN: opt < %s -O1 -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
%struct.anon = type { [100 x i32], i32, [100 x i32] }
+%struct.anon.0 = type { [100 x [100 x i32]], i32, [100 x [100 x i32]] }
@Foo = common global %struct.anon zeroinitializer, align 4
+@Bar = common global %struct.anon.0 zeroinitializer, align 4
+
@PB = external global i32*
@PA = external global i32*
+
+;; === First, the tests that should always vectorize, wither statically or by adding run-time checks ===
+
+
+; /// Different objects, positive induction, constant distance
; int noAlias01 (int a) {
; int i;
; for (i=0; i<SIZE; i++)
; Foo.A[i] = Foo.B[i] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @noAlias01
+; CHECK-LABEL: define i32 @noAlias01(
; CHECK: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @noAlias01(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %1 = load i32, i32* %i, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
- %arrayidx1 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
+ %4 = load i32, i32* %i, align 4
+ %arrayidx1 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
store i32 %add, i32* %arrayidx1, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx2, align 4
+ ret i32 %7
+}
+
+; /// Different objects, positive induction with widening slide
+; int noAlias02 (int a) {
+; int i;
+; for (i=0; i<SIZE-10; i++)
+; Foo.A[i] = Foo.B[i+10] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias02(
+; CHECK: add nsw <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias02(i32 %a) {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 90
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %add = add nsw i32 %1, 10
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %add
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add1 = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
+ store i32 %add1, i32* %arrayidx2, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
+ ret i32 %7
+}
+
+; /// Different objects, positive induction with shortening slide
+; int noAlias03 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; Foo.A[i+10] = Foo.B[i] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias03(
+; CHECK: add nsw <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias03(i32 %a) {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %add1 = add nsw i32 %4, 10
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add1
+ store i32 %add, i32* %arrayidx2, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
+ ret i32 %7
+}
+
+; /// Pointer access, positive stride, run-time check added
+; int noAlias04 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; *(PA+i) = *(PB+i) + a;
+; return *(PA+a);
+; }
+; CHECK-LABEL: define i32 @noAlias04(
+; CHECK-NOT: add nsw <4 x i32>
+; CHECK: ret
+;
+; TODO: This test vectorizes (with run-time check) on real targets with -O3)
+; Check why it's not being vectorized even when forcing vectorization
+
+define i32 @noAlias04(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32*, i32** @PB, align 4
+ %2 = load i32, i32* %i, align 4
+ %add.ptr = getelementptr inbounds i32, i32* %1, i32 %2
+ %3 = load i32, i32* %add.ptr, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %3, %4
+ %5 = load i32*, i32** @PA, align 4
+ %6 = load i32, i32* %i, align 4
+ %add.ptr1 = getelementptr inbounds i32, i32* %5, i32 %6
+ store i32 %add, i32* %add.ptr1, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32*, i32** @PA, align 4
+ %9 = load i32, i32* %a.addr, align 4
+ %add.ptr2 = getelementptr inbounds i32, i32* %8, i32 %9
+ %10 = load i32, i32* %add.ptr2, align 4
+ ret i32 %10
+}
+
+; /// Different objects, positive induction, multi-array
+; int noAlias05 (int a) {
+; int i, N=10;
+; for (i=0; i<SIZE; i++)
+; Bar.A[N][i] = Bar.B[N][i] + a;
+; return Bar.A[N][a];
+; }
+; CHECK-LABEL: define i32 @noAlias05(
+; CHECK: add nsw <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias05(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ %N = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 10, i32* %N, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %2 = load i32, i32* %N, align 4
+ %arrayidx = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 2), i32 0, i32 %2
+ %arrayidx1 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx, i32 0, i32 %1
+ %3 = load i32, i32* %arrayidx1, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %3, %4
+ %5 = load i32, i32* %i, align 4
+ %6 = load i32, i32* %N, align 4
+ %arrayidx2 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %6
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx2, i32 0, i32 %5
+ store i32 %add, i32* %arrayidx3, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32, i32* %a.addr, align 4
+ %9 = load i32, i32* %N, align 4
+ %arrayidx4 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %9
+ %arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx4, i32 0, i32 %8
+ %10 = load i32, i32* %arrayidx5, align 4
+ ret i32 %10
+}
+
+; /// Same objects, positive induction, multi-array, different sub-elements
+; int noAlias06 (int a) {
+; int i, N=10;
+; for (i=0; i<SIZE; i++)
+; Bar.A[N][i] = Bar.A[N+1][i] + a;
+; return Bar.A[N][a];
+; }
+; CHECK-LABEL: define i32 @noAlias06(
+; CHECK: add nsw <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias06(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ %N = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 10, i32* %N, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %2 = load i32, i32* %N, align 4
+ %add = add nsw i32 %2, 1
+ %arrayidx = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %add
+ %arrayidx1 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx, i32 0, i32 %1
+ %3 = load i32, i32* %arrayidx1, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add2 = add nsw i32 %3, %4
+ %5 = load i32, i32* %i, align 4
+ %6 = load i32, i32* %N, align 4
+ %arrayidx3 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %6
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx3, i32 0, i32 %5
+ store i32 %add2, i32* %arrayidx4, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32, i32* %a.addr, align 4
+ %9 = load i32, i32* %N, align 4
+ %arrayidx5 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %9
+ %arrayidx6 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx5, i32 0, i32 %8
+ %10 = load i32, i32* %arrayidx6, align 4
+ ret i32 %10
+}
+
+; /// Different objects, negative induction, constant distance
+; int noAlias07 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; Foo.A[SIZE-i-1] = Foo.B[SIZE-i-1] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias07(
+; CHECK: store <4 x i32>
+; CHECK: ret
+define i32 @noAlias07(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 1
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %sub2 = sub nsw i32 100, %4
+ %sub3 = sub nsw i32 %sub2, 1
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub3
+ store i32 %add, i32* %arrayidx4, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx5, align 4
+ ret i32 %7
+}
+
+; /// Different objects, negative induction, shortening slide
+; int noAlias08 (int a) {
+; int i;
+; for (i=0; i<SIZE-10; i++)
+; Foo.A[SIZE-i-1] = Foo.B[SIZE-i-10] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias08(
+; CHECK: sub <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias08(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 90
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 10
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %sub2 = sub nsw i32 100, %4
+ %sub3 = sub nsw i32 %sub2, 1
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub3
+ store i32 %add, i32* %arrayidx4, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx2 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx2, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx5, align 4
ret i32 %7
}
+; /// Different objects, negative induction, widening slide
+; int noAlias09 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; Foo.A[SIZE-i-10] = Foo.B[SIZE-i-1] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias09(
+; CHECK: sub <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias09(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 1
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %sub2 = sub nsw i32 100, %4
+ %sub3 = sub nsw i32 %sub2, 10
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub3
+ store i32 %add, i32* %arrayidx4, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx5, align 4
+ ret i32 %7
+}
+
+; /// Pointer access, negative stride, run-time check added
+; int noAlias10 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; *(PA+SIZE-i-1) = *(PB+SIZE-i-1) + a;
+; return *(PA+a);
+; }
+; CHECK-LABEL: define i32 @noAlias10(
+; CHECK-NOT: sub {{.*}} <4 x i32>
+; CHECK: ret
+;
+; TODO: This test vectorizes (with run-time check) on real targets with -O3)
+; Check why it's not being vectorized even when forcing vectorization
+
+define i32 @noAlias10(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32*, i32** @PB, align 4
+ %add.ptr = getelementptr inbounds i32, i32* %1, i32 100
+ %2 = load i32, i32* %i, align 4
+ %idx.neg = sub i32 0, %2
+ %add.ptr1 = getelementptr inbounds i32, i32* %add.ptr, i32 %idx.neg
+ %add.ptr2 = getelementptr inbounds i32, i32* %add.ptr1, i32 -1
+ %3 = load i32, i32* %add.ptr2, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %3, %4
+ %5 = load i32*, i32** @PA, align 4
+ %add.ptr3 = getelementptr inbounds i32, i32* %5, i32 100
+ %6 = load i32, i32* %i, align 4
+ %idx.neg4 = sub i32 0, %6
+ %add.ptr5 = getelementptr inbounds i32, i32* %add.ptr3, i32 %idx.neg4
+ %add.ptr6 = getelementptr inbounds i32, i32* %add.ptr5, i32 -1
+ store i32 %add, i32* %add.ptr6, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32*, i32** @PA, align 4
+ %9 = load i32, i32* %a.addr, align 4
+ %add.ptr7 = getelementptr inbounds i32, i32* %8, i32 %9
+ %10 = load i32, i32* %add.ptr7, align 4
+ ret i32 %10
+}
+
+; /// Different objects, negative induction, multi-array
+; int noAlias11 (int a) {
+; int i, N=10;
+; for (i=0; i<SIZE; i++)
+; Bar.A[N][SIZE-i-1] = Bar.B[N][SIZE-i-1] + a;
+; return Bar.A[N][a];
+; }
+; CHECK-LABEL: define i32 @noAlias11(
+; CHECK: store <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias11(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ %N = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 10, i32* %N, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 1
+ %2 = load i32, i32* %N, align 4
+ %arrayidx = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 2), i32 0, i32 %2
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx, i32 0, i32 %sub1
+ %3 = load i32, i32* %arrayidx2, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %3, %4
+ %5 = load i32, i32* %i, align 4
+ %sub3 = sub nsw i32 100, %5
+ %sub4 = sub nsw i32 %sub3, 1
+ %6 = load i32, i32* %N, align 4
+ %arrayidx5 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %6
+ %arrayidx6 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx5, i32 0, i32 %sub4
+ store i32 %add, i32* %arrayidx6, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32, i32* %a.addr, align 4
+ %9 = load i32, i32* %N, align 4
+ %arrayidx7 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %9
+ %arrayidx8 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx7, i32 0, i32 %8
+ %10 = load i32, i32* %arrayidx8, align 4
+ ret i32 %10
+}
+
+; /// Same objects, negative induction, multi-array, different sub-elements
+; int noAlias12 (int a) {
+; int i, N=10;
+; for (i=0; i<SIZE; i++)
+; Bar.A[N][SIZE-i-1] = Bar.A[N+1][SIZE-i-1] + a;
+; return Bar.A[N][a];
+; }
+; CHECK-LABEL: define i32 @noAlias12(
+; CHECK: store <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias12(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ %N = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 10, i32* %N, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 1
+ %2 = load i32, i32* %N, align 4
+ %add = add nsw i32 %2, 1
+ %arrayidx = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %add
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx, i32 0, i32 %sub1
+ %3 = load i32, i32* %arrayidx2, align 4
+ %4 = load i32, i32* %a.addr, align 4
+ %add3 = add nsw i32 %3, %4
+ %5 = load i32, i32* %i, align 4
+ %sub4 = sub nsw i32 100, %5
+ %sub5 = sub nsw i32 %sub4, 1
+ %6 = load i32, i32* %N, align 4
+ %arrayidx6 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %6
+ %arrayidx7 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx6, i32 0, i32 %sub5
+ store i32 %add3, i32* %arrayidx7, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %7 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %7, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %8 = load i32, i32* %a.addr, align 4
+ %9 = load i32, i32* %N, align 4
+ %arrayidx8 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @Bar, i32 0, i32 0), i32 0, i32 %9
+ %arrayidx9 = getelementptr inbounds [100 x i32], [100 x i32]* %arrayidx8, i32 0, i32 %8
+ %10 = load i32, i32* %arrayidx9, align 4
+ ret i32 %10
+}
+
+; /// Same objects, positive induction, constant distance, just enough for vector size
+; int noAlias13 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; Foo.A[i] = Foo.A[i+4] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias13(
+; CHECK: add nsw <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias13(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %add = add nsw i32 %1, 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add1 = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
+ store i32 %add1, i32* %arrayidx2, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
+ ret i32 %7
+}
+
+; /// Same objects, negative induction, constant distance, just enough for vector size
+; int noAlias14 (int a) {
+; int i;
+; for (i=0; i<SIZE; i++)
+; Foo.A[SIZE-i-1] = Foo.A[SIZE-i-5] + a;
+; return Foo.A[a];
+; }
+; CHECK-LABEL: define i32 @noAlias14(
+; CHECK: sub <4 x i32>
+; CHECK: ret
+
+define i32 @noAlias14(i32 %a) #0 {
+entry:
+ %a.addr = alloca i32, align 4
+ %i = alloca i32, align 4
+ store i32 %a, i32* %a.addr, align 4
+ store i32 0, i32* %i, align 4
+ br label %for.cond
+
+for.cond: ; preds = %for.inc, %entry
+ %0 = load i32, i32* %i, align 4
+ %cmp = icmp slt i32 %0, 100
+ br i1 %cmp, label %for.body, label %for.end
+
+for.body: ; preds = %for.cond
+ %1 = load i32, i32* %i, align 4
+ %sub = sub nsw i32 100, %1
+ %sub1 = sub nsw i32 %sub, 5
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
+ %add = add nsw i32 %2, %3
+ %4 = load i32, i32* %i, align 4
+ %sub2 = sub nsw i32 100, %4
+ %sub3 = sub nsw i32 %sub2, 1
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub3
+ store i32 %add, i32* %arrayidx4, align 4
+ br label %for.inc
+
+for.inc: ; preds = %for.body
+ %5 = load i32, i32* %i, align 4
+ %inc = add nsw i32 %5, 1
+ store i32 %inc, i32* %i, align 4
+ br label %for.cond
+
+for.end: ; preds = %for.cond
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx5 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx5, align 4
+ ret i32 %7
+}
+
+
+;; === Now, the tests that we could vectorize with induction changes or run-time checks ===
+
+
+; /// Different objects, swapped induction, alias at the end
; int mayAlias01 (int a) {
; int i;
; for (i=0; i<SIZE; i++)
; Foo.A[i] = Foo.B[SIZE-i-1] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @mayAlias01
+; CHECK-LABEL: define i32 @mayAlias01(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mayAlias01(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
+ %1 = load i32, i32* %i, align 4
%sub = sub nsw i32 100, %1
%sub1 = sub nsw i32 %sub, 1
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
- %arrayidx2 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
+ %4 = load i32, i32* %i, align 4
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
store i32 %add, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx3 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx3, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
ret i32 %7
}
+; /// Different objects, swapped induction, alias at the beginning
; int mayAlias02 (int a) {
; int i;
; for (i=0; i<SIZE; i++)
; Foo.A[SIZE-i-1] = Foo.B[i] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @mayAlias02
+; CHECK-LABEL: define i32 @mayAlias02(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mayAlias02(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %1 = load i32, i32* %i, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
+ %4 = load i32, i32* %i, align 4
%sub = sub nsw i32 100, %4
%sub1 = sub nsw i32 %sub, 1
- %arrayidx2 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub1
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %sub1
store i32 %add, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx3 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx3, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
ret i32 %7
}
+; /// Pointer access, run-time check added
; int mayAlias03 (int a) {
; int i;
; for (i=0; i<SIZE; i++)
; *(PA+i) = *(PB+SIZE-i-1) + a;
; return *(PA+a);
; }
-; CHECK: define i32 @mayAlias03
+; CHECK-LABEL: define i32 @mayAlias03(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mayAlias03(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32** @PB, align 4
- %add.ptr = getelementptr inbounds i32* %1, i32 100
- %2 = load i32* %i, align 4
+ %1 = load i32*, i32** @PB, align 4
+ %add.ptr = getelementptr inbounds i32, i32* %1, i32 100
+ %2 = load i32, i32* %i, align 4
%idx.neg = sub i32 0, %2
- %add.ptr1 = getelementptr inbounds i32* %add.ptr, i32 %idx.neg
- %add.ptr2 = getelementptr inbounds i32* %add.ptr1, i32 -1
- %3 = load i32* %add.ptr2, align 4
- %4 = load i32* %a.addr, align 4
+ %add.ptr1 = getelementptr inbounds i32, i32* %add.ptr, i32 %idx.neg
+ %add.ptr2 = getelementptr inbounds i32, i32* %add.ptr1, i32 -1
+ %3 = load i32, i32* %add.ptr2, align 4
+ %4 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %3, %4
- %5 = load i32** @PA, align 4
- %6 = load i32* %i, align 4
- %add.ptr3 = getelementptr inbounds i32* %5, i32 %6
+ %5 = load i32*, i32** @PA, align 4
+ %6 = load i32, i32* %i, align 4
+ %add.ptr3 = getelementptr inbounds i32, i32* %5, i32 %6
store i32 %add, i32* %add.ptr3, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %7 = load i32* %i, align 4
+ %7 = load i32, i32* %i, align 4
%inc = add nsw i32 %7, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %8 = load i32** @PA, align 4
- %9 = load i32* %a.addr, align 4
- %add.ptr4 = getelementptr inbounds i32* %8, i32 %9
- %10 = load i32* %add.ptr4, align 4
+ %8 = load i32*, i32** @PA, align 4
+ %9 = load i32, i32* %a.addr, align 4
+ %add.ptr4 = getelementptr inbounds i32, i32* %8, i32 %9
+ %10 = load i32, i32* %add.ptr4, align 4
ret i32 %10
}
+
+;; === Finally, the tests that should only vectorize with care (or if we ignore undefined behaviour at all) ===
+
+
; int mustAlias01 (int a) {
; int i;
; for (i=0; i<SIZE; i++)
; Foo.A[i+10] = Foo.B[SIZE-i-1] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @mustAlias01
+; CHECK-LABEL: define i32 @mustAlias01(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mustAlias01(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
+ %1 = load i32, i32* %i, align 4
%sub = sub nsw i32 100, %1
%sub1 = sub nsw i32 %sub, 1
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
+ %4 = load i32, i32* %i, align 4
%add2 = add nsw i32 %4, 10
- %arrayidx3 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add2
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add2
store i32 %add, i32* %arrayidx3, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx4 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx4, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx4, align 4
ret i32 %7
}
; Foo.A[i] = Foo.B[SIZE-i-10] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @mustAlias02
+; CHECK-LABEL: define i32 @mustAlias02(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mustAlias02(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
+ %1 = load i32, i32* %i, align 4
%sub = sub nsw i32 100, %1
%sub1 = sub nsw i32 %sub, 10
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
- %arrayidx2 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
+ %4 = load i32, i32* %i, align 4
+ %arrayidx2 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %4
store i32 %add, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx3 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx3, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx3, align 4
ret i32 %7
}
; Foo.A[i+10] = Foo.B[SIZE-i-10] + a;
; return Foo.A[a];
; }
-; CHECK: define i32 @mustAlias03
+; CHECK-LABEL: define i32 @mustAlias03(
; CHECK-NOT: add nsw <4 x i32>
-; CHECK ret
+; CHECK: ret
define i32 @mustAlias03(i32 %a) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %0 = load i32* %i, align 4
+ %0 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %0, 100
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %1 = load i32* %i, align 4
+ %1 = load i32, i32* %i, align 4
%sub = sub nsw i32 100, %1
%sub1 = sub nsw i32 %sub, 10
- %arrayidx = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
- %2 = load i32* %arrayidx, align 4
- %3 = load i32* %a.addr, align 4
+ %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 2), i32 0, i32 %sub1
+ %2 = load i32, i32* %arrayidx, align 4
+ %3 = load i32, i32* %a.addr, align 4
%add = add nsw i32 %2, %3
- %4 = load i32* %i, align 4
+ %4 = load i32, i32* %i, align 4
%add2 = add nsw i32 %4, 10
- %arrayidx3 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add2
+ %arrayidx3 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %add2
store i32 %add, i32* %arrayidx3, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %5 = load i32* %i, align 4
+ %5 = load i32, i32* %i, align 4
%inc = add nsw i32 %5, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %6 = load i32* %a.addr, align 4
- %arrayidx4 = getelementptr inbounds [100 x i32]* getelementptr inbounds (%struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
- %7 = load i32* %arrayidx4, align 4
+ %6 = load i32, i32* %a.addr, align 4
+ %arrayidx4 = getelementptr inbounds [100 x i32], [100 x i32]* getelementptr inbounds (%struct.anon, %struct.anon* @Foo, i32 0, i32 0), i32 0, i32 %6
+ %7 = load i32, i32* %arrayidx4, align 4
ret i32 %7
}
projects / oota-llvm.git / blobdiff